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Title
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Experimental study of lattice dynamics in individual semiconducting double-walled carbon nanotubes: Tangential G modes
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Author
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Abstract
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| The tangential G modes in individual semiconducting double-walled nanotubes have been examined via Raman spectroscopy over a wide laser excitation wavelength range. Individual suspended nanotubes have been synthesized via chemical vapor deposition. The (n, m) chirality indices are determined via electron diffraction and high-resolution transmission electron microscopy. The pronounced shift in the tangential modes compared to the analogous modes of single-walled nanotubes has been observed in Raman spectra of double-walled nanotubes. The shift value is shown to depend on the interlayer distance and on the van der Waals interaction between the layers in a double-walled tube. |
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Language
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English
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Source (journal)
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Physics of the solid state. - Woodbury
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Publication
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Woodbury
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2017
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ISSN
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1063-7834
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DOI
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10.1134/S1063783417020147
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Volume/pages
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59
:2
(2017)
, p. 338-343
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ISI
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000394986300022
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Full text (Publisher's DOI)
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